CVE-2026-93222

Description

In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

Overview

State: PUBLISHED
Assigner (CNA): Linux
CVSS severity: —
CVSS score: —
CVSS vector: —
Effective score: no score available from CNA, NVD, or AI yet
CWE(s): —
Reserved: 2026-09-17
Published: 2026-09-24 15:21 UTC
Last updated: 2026-09-24 15:21 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/93xxx/CVE-2026-93222.json

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Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.

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European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-86225
Assigner: Linux
Published: Sep 24, 2026, 3:21:04 PM
Updated: Sep 24, 2026, 3:21:04 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0000
Vendors: Linux
Products: Linux (patch: 6.6.157)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <a246da20c8e4ae4319511c698b9f26ad0ad1769f)

Linux (patch: 6.18.50)

Linux (e897dd22800f02bd48aefb1511fff0b2ce96e94c)

Linux (patch: 5.10.270)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <4ee7c4e4719a825052f42f02ec159b5b42b68fbc)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <b655c2040ce836afad5643842543567b31f8c11d)

Linux (patch: 0)

Linux (patch: 7.2.4)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <148b0dae2a1755beb873a2aab51fb191414f068c)

Linux (patch: 7.3-rc1)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <e015d1ac6b43a23c52c5163299414ae77d7d4ae0)

Linux (5.1.20 <5.2)

Linux (patch: 6.12.109)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <03c8761e75d1619906bb503686f9cc1dfc6a67f4)

Linux (5.3)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <d19cdc167e696714509e87d3f7ae765b6e164589)

Linux (2f0e9eed11ca778d0ec5507a739c28472fd4ca20)

Linux (5.2.3 <5.3)

Linux (patch: 5.15.221)

Linux (patch: 6.1.188)

Linux (7a0cf094944e2540758b7f957eb6846d5126f535 <6b1de022304ef85284c5933a5fb8492f6f54efc9)
Aliases: GHSA-fw3g-8x7h-cvj8

ENISA description: In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

EUVD references (8)

Affected products (2)

Vendor	Product	Versions	Platforms
Linux	Linux	`7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `7a0cf094944e2540758b7f957eb6846d5126f535` (affected), `e897dd22800f02bd48aefb1511fff0b2ce96e94c` (affected), `2f0e9eed11ca778d0ec5507a739c28472fd4ca20` (affected), `5.1.20` (affected), `5.2.3` (affected)	—
Linux	Linux	`5.3` (affected), `0` (unaffected), `5.10.270` (unaffected), `5.15.221` (unaffected), `6.1.188` (unaffected), `6.6.157` (unaffected), `6.12.109` (unaffected), `6.18.50` (unaffected), `7.2.4` (unaffected), `7.3-rc1` (unaffected)	—

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Remediations (10)

CVE-2026-9323 - Red Hat Customer Portal

web:access.redhat.com

Overall, you have the following options: Upgrade to a supported product version that includes a fix for this vulnerability (recommended). Apply a mitigation (if one exists). Customers with the Technical Account Manager (TAM) RHEL Security Select Add-on can review this CVE directly with their TAM.

2026-09-25 10:45 UTC
July 2026 Critical Patch Update Released | security - Oracle Blogs

web:blogs.oracle.com

For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

2026-09-25 10:45 UTC
CVE-2026-93222: Linux Vulnerability - CVETodo

web:cvetodo.com

CVE-2026-93222 vulnerability details and analysis. Full technical analysis, mitigations , and exploit status — updated in real time.

2026-09-25 10:45 UTC
CVE: Common Vulnerabilities and Exposures

web:www.cve.org

At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

2026-09-25 10:45 UTC
CISA Gives Federal Agencies 72 Hours To Patch Actively ... - Forbes

web:www.forbes.com

An Oracle vulnerability patched in January is now being actively exploited, prompting CISA to give federal agencies just 72 hours to secure affected systems.

2026-09-25 10:45 UTC
September 2026 Oracle Critical Security Patch Update Analysis

web:www.fortra.com

Analyze Oracle's September 2026 Critical Security Patch Update, including 673 patches, 246 remotely exploitable CVEs , and key vulnerabilities with CVSS scores up to 10.0.

2026-09-25 10:45 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-25 10:45 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-25 10:45 UTC
CVE-2026-93222 | Tenable®

web:www.tenable.com

In the Linux kernel, the following vulnerability has been resolved: signal: avoid shared siginfo namespace rewrites send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next. Copy the siginfo before changing it.

2026-09-25 10:45 UTC
CVE-2026-9322 PoC, Exploit Status & Vulnerability Details | TheHackerWire

web:www.thehackerwire.com

How do I fix or mitigate CVE - 2026 -9322? To protect against CVE - 2026 -9322, you should: (1) Apply the latest security patches from Ibm, (2) Check official security advisories for specific remediation steps, (3) Update affected software to the latest version, and (4) Monitor your systems for any signs of exploitation. When was CVE - 2026 -9322 disclosed?

2026-09-25 10:45 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-93222.json.

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        }
      ],
      "providerMetadata": {
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      ],
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93222",
    "datePublished": "2026-09-24T15:21:04.961Z",
    "dateReserved": "2026-09-17T16:02:15.094Z",
    "dateUpdated": "2026-09-24T15:21:04.961Z",
    "state": "PUBLISHED"
  },
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}